It is believed that any maledetermining genes contained on t

It is believed that any male-determining genes contained on the Y chromosome in humans are not located in the limited region that synapses with the X chromosome during meiosis. What might be the outcome if such genes were located in this region? It would lead to non-disjunction of sex chromosomes during stage 1 of meiosis. It would lead to very high frequency of Turner syndrome. It would be detrimental to sex-determining mechanisms due to crossing over. It would lead to non-disjunction of sex chromosomes during stage 2 of meiosis.

Solution

The answer is: It would be detrimental to sex-determining mechanisms due to crossing over.

It would be detrimental if the male determining genes after crossing over are transferred to X chromosome from Y chromosome.